Hello! I am Universal Omega, a system administrator, interwiki adminstrator, wiki creator, and security reviewer for Miraheze. I have been on Miraheze since April 15, 2020 (verify).
I also have developed my own skin, which is deployed to Miraheze, called Cosmos. If you need any assistance, regarding that, I recommend you leave a message on its' talk page at mediawiki.org, or asking on its' Discord server. Thank you!